SURFACE HARDENING. A generic term covering several processes applicable to a suitable ferrous alloy that produces, by quench hardening only, a surface layer that is harder or more wear resistant than the core. There is no significant alteration of the chemical composition of the surface layer. The processes commonly used are carbonitriding, carburizing, induction hardening, flame hardening, nitriding, and nitrocarburizing. Use of the applicable specific process name is preferred.
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THERMAL STRESS. Stresses in metal resulting from non-uniform temperature distribution.
TRANSFORMATION HARDENING. Heat treatment comprising austenitization followed by cooling under conditions such that the austenite transforms more or less completely into martensite and […]
VAPOR PLATING. Deposition of a metal or compound on a heated surface by reduction or decomposition of a volatile compound at a temperature […]